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Finding the Fourth Proportional to 8,601.48, 12,904.29 and 2,678.22

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Solution

The fourth proportional to 8,601.48, 12,904.29 and 2,678.22 is: 4,017.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.48 : 12,904.29 = 2,678.22 : x
  2. Step 2: Convert to fraction form
    8,601.48/12,904.29 = 2,678.22/x
  3. Step 3: Cross multiply
    8,601.48x = 12,904.29 × 2,678.22
  4. Step 4: Simplify right side
    8,601.48x = 34,560,527.56
  5. Step 5: Solve for x
    x = 34,560,527.56/8,601.48
  6. Step 6: Final answer
    x = 4,017.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.